Markal Pro-Ex Lumber Crayon
This Pro-ex brown lumber crayon features a weather-resistAntique clay-based formula that allows for reduced breaking and long-lasting writing on wet and rough surfaces. It has a 1/2-inch tip, a 2-minute dry time, and a temperature range of -20 Degrees F to 150 Degrees F. This crayon is ideal for use on masonry, lumber, treated wood, metal, and cardboard.